html, body {
    font-family: helvetica, arial, sans-serif;
    font-size: 85%;
    margin: 0;
	padding: 10px;
}

.center{
	text-align:center;
}

pre{
	font-family: helvetica, arial, sans-serif;
    font-size: 100%;
}

.hidden{
	display:none;
}

h6{font-size: 90%;}
h5{font-size: 95%;}
h4{font-size: 100%;}
h3{font-size: 105%;}
h2{font-size: 110%;}
h1{font-size: 115%;}

p{
	text-align: justify;
}